Ubuntu Update for tomcat6 USN-1359-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1359-1
Solution
Please Install the Updated Packages.
Insight
It was discovered that Tomcat incorrectly performed certain caching and recycling operations. A remote attacker could use this flaw to obtain read access to IP address and HTTP header information in certain cases. This issue only applied to Ubuntu 11.10. (CVE-2011-3375) It was discovered that Tomcat computed hash values for form parameters without restricting the ability to trigger hash collisions predictably. A remote attacker could cause a denial of service by sending many crafted parameters. (CVE-2011-4858) It was discovered that Tomcat incorrectly handled parameters. A remote attacker could cause a denial of service by sending requests with a large number of parameters and values. (CVE-2012-0022)
Affected
tomcat6 on Ubuntu 11.04 , Ubuntu 10.10 , Ubuntu 10.04 LTS